A rail transit braking energy recovery system. The rail transit braking energy recovery system comprises a braking motor, a fuel battery, an electrolytic bath, and a hydrogen tank. The braking motor is used for converting braking energy of the rail transit into electric energy. An output end of the braking motor is connected to a power input end of the electrolytic bath. The electrolytic bath comprises a hydrogen output end and an oxygen output end, the hydrogen output end is connected to the hydrogen tank, and the hydrogen tank is connected to the fuel battery and is used for supplying hydrogen to the fuel battery. In the system, only the electrolytic bath is structurally added, and the existing vehicle-mounted hydrogen tank is directly used for storing hydrogen, therefore the structure is simple, the self weight of the vehicle body is reduced, the energy conversion efficiency is high, and at the same time, the injection of hydrogen is reduced and the operation cost is reduced. In addition, the purity of the hydrogen obtained by means of electrolysis is high, so that the hydrogen can be directly supplied to the fuel battery to be used without being processed. Also provided is a hybrid power rail transit system.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A rail transit braking energy recovery system, comprises a braking motor, a fuel battery, an electrolytic bath, and a hydrogen tank; wherein the braking motor is configured to convert braking energy of the rail transit into electric energy, and an output end of the braking motor is connected to a power input end of the electrolytic bath; the electrolytic bath comprises a hydrogen output end and an oxygen output end, the hydrogen output end being connected to the hydrogen tank and the hydrogen tank being connected to the fuel battery for supplying hydrogen to the fuel battery.
2. The rail transit braking energy recovery system of claim 1 , further comprises a control device and an energy storage device connected to the output end of the braking motor; the control device is configured to control a current output of the braking motor so that the current is output to the electrolytic bath or the energy storage device.
3. The rail transit braking energy recovery system of claim 2 , wherein the energy storage device is a lithium battery or a super capacitor.
4. The rail transit braking energy recovery system of claim 2 , wherein the hydrogen tank is connected with a hydrogen pressure sensor.
5. The rail transit braking energy recovery system of claim 1 , wherein the output end of the braking motor is connected to the electrolytic bath through a rectifier module and a voltage regulator module.
6. The rail transit braking energy recovery system of claim 1 , further comprising a braking resistor connected to the braking motor.
7. A hybrid power rail transit, comprises an entire vehicle air supply system, an entire vehicle power supply system and a rail transit braking energy recovery system of comprising a braking motor, a fuel battery, an electrolytic bath, and a hydrogen tank; wherein the braking motor is configured to convert braking energy of the rail transit into electric energy, and an output end of the braking motor is connected to a power input end of the electrolytic bath; the electrolytic bath comprises a hydrogen output end and an oxygen output end, the hydrogen output end being connected to the hydrogen tank and the hydrogen tank being connected to the fuel battery for supplying hydrogen to the fuel battery; wherein the oxygen output end is connected to the entire vehicle air supply system, and the fuel battery is connected to the entire vehicle power supply system.
8. The hybrid power rail transit of claim 7 , further comprising a heat dissipation system for dissipating heat of the fuel battery and the electrolytic bath.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
August 22, 2017
July 6, 2021
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